Generac — Prepare Fuel System/Engine for Storage
Maintenance
From a Generac owner's manual covering: IQ5200DF, iQ3800, iQ3800 DF, iQ5200. Check it applies to your exact model before use.
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Before you start
- Vision Loss. Eye protection is required to avoid spray from spark plug hole when cranking engine.
Procedure
- Change engine oil.
- Remove spark plug.
- Pour tablespoon (5-10cc) of clean engine oil or spray a suitable fogging agent into cylinder.
- Pull starter recoil several times to distribute oil in cylinder.
- Install spark plug.
- Pull recoil slowly until resistance is felt to close valves; gently release recoil.
Specs & values
- Adequately prepared fuel can be stored up to 24 months
Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.